I found some other threads on this issue, and most of them were resolved. None of the suggestions in those threads helped me so I am starting this new topic.
When I use Adsense Deluxe, I am getting "Cannot load adsense-deluxe.php" as well.
OK, I had AS Deluxe working and then I switched theme and it stopped working. I disabled the plugin, made sure I downloaded and upgraded from .7 to .8 versions. I then deleted the old adsense plugin, and uploaded adsense-deluxe_wp_plugin_v0.8 as is to my plugings folder.
I activated it in Admin/plugins and proceeded to try to configure a few plugin blocks and now all I get is this:
“Cannot load adsense-deluxe.php.”